Yeah, what the people (fodgeycakes) realised was that with pretty much all attacks occurring -where there are 10 people or less left in town- only 150 zeds will actually attack the people (and the rest will be 'lazy'). So what they did was build up their houses, and they managed to find two blueprint buildings that increased their individual house defense even more. So the town effectively cannot die, unless they run out of water. The end of the season will likely spell the end of the town, however, and the end of the strategy.
How many people are still actively playing this, by the way?